Los Perez Weather Records (MXN00015275)

Record envelope, standing records and threshold days for Los Perez (MXN00015275), Mexico, with 32 years of record.

Key Facts for Los Perez

Los Perez (MXN00015275) is a weather station in Mexico at 18.75 latitude and -99.85 longitude, 1,950 m (6,397 ft) above sea level.
The station reports from 1981 to 2012, 32 years of record.
1,464 records set at Los Perez still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Mexico, 18.75 latitude, -99.85 longitude.
Elevation: 1,950 m (6,397 ft).
Period of record: 1981 to 2012, 32 years.
Eligible elements: none yet.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Los Perez. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Los Perez, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	35.0 C (95.0 F)	-6.1 C (21.0 F)	n/a	n/a
Feb	35.6 C (96.1 F)	-4.4 C (24.1 F)	n/a	n/a
Mar	37.8 C (100.0 F)	-1.1 C (30.0 F)	n/a	n/a
Apr	37.8 C (100.0 F)	0.6 C (33.1 F)	n/a	n/a
May	36.7 C (98.1 F)	3.9 C (39.0 F)	n/a	n/a
Jun	35.0 C (95.0 F)	3.9 C (39.0 F)	n/a	n/a
Jul	36.1 C (97.0 F)	1.7 C (35.1 F)	n/a	n/a
Aug	33.9 C (93.0 F)	3.9 C (39.0 F)	n/a	n/a
Sep	34.4 C (93.9 F)	5.0 C (41.0 F)	n/a	n/a
Oct	32.2 C (90.0 F)	0.0 C (32.0 F)	n/a	n/a
Nov	30.6 C (87.1 F)	0.0 C (32.0 F)	n/a	n/a
Dec	31.7 C (89.1 F)	-5.0 C (23.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Los Perez still stand. 2012 holds the most, with 484.

Wettest Day of Each Month

Oct: 67.8 mm (2.7 in)

The wettest day on record for each calendar month at Los Perez. The most was 67.8 mm (2.7 in) on 4 October 2005.

Record daily precipitation for each month at Los Perez
Month	Record daily precipitation (mm)	Date
Jan	29.0 mm (1.1 in)	17 January 1983
Feb	64.8 mm (2.6 in)	2 February 2010
Mar	28.4 mm (1.1 in)	2 March 2001
Apr	17.8 mm (0.7 in)	24 April 2001
May	59.7 mm (2.4 in)	20 May 1982
Jun	52.8 mm (2.1 in)	18 June 1981
Jul	65.8 mm (2.6 in)	19 July 2011
Aug	51.8 mm (2.0 in)	21 August 2009
Sep	46.0 mm (1.8 in)	4 September 1988
Oct	67.8 mm (2.7 in)	4 October 2005
Nov	33.5 mm (1.3 in)	24 November 1986
Dec	33.3 mm (1.3 in)	2 December 1986

Period of Record Coverage

1981 to 2012

18 years of record at Los Perez, 1981 to 2012. 5 years have data for under 90 percent of days and are left out of rankings: 1981, 1983, 1988, 2000, 2010.

Days with data per year at Los Perez
Year	Days with data	Share of year	Complete
1981	293	80%	No
1982	364	100%	Yes
1983	272	75%	No
1984	365	100%	Yes
1986	334	92%	Yes
1987	365	100%	Yes
1988	274	75%	No
2000	31	8%	No
2001	364	100%	Yes
2002	365	100%	Yes
2003	362	99%	Yes
2004	366	100%	Yes
2005	365	100%	Yes
2008	350	96%	Yes
2009	334	92%	Yes
2010	242	66%	No
2011	344	94%	Yes
2012	356	97%	Yes

Latest Records

No records were set at this station in the latest data.

Climate Trend

10 complete years, 1982 to 2012

One stripe for each of 10 complete years at Los Perez, 1982 to 2012. Blue stripes are years cooler than the station's own mean of 17.4 C (63.4 F); red stripes are warmer. The coolest year was 2003, at 14.0 C (57.2 F), and the warmest was 2012, at 24.9 C (76.8 F). The strongest colour marks a difference of 7.5 C (13.5 F).

Annual mean temperature at Los Perez as warming stripes, 1982 to 2012
Year	Annual mean temperature	Difference from the station mean
1982	19.2 C	+1.75 C
1984	18.0 C	+0.53 C
1987	18.7 C	+1.24 C
2001	16.8 C	-0.67 C
2002	15.7 C	-1.73 C
2003	14.0 C	-3.44 C
2004	14.3 C	-3.18 C
2005	15.4 C	-2.04 C
2008	17.5 C	+0.09 C
2012	24.9 C	+7.44 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1981 to 2012

Yearly extremes at Los Perez: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	37.8 C (100.0 F)	2008	30.9 C (87.5 F)	18
Coldest night (TNn)	-6.1 C (21.0 F)	2004	5.0 C (41.0 F)	18
Wettest day (Rx1day)	67.8 mm (2.7 in)	2005	42.9 mm (1.7 in)	18
Wettest five days (Rx5day)	182.4 mm (7.2 in)	1982	104.1 mm (4.1 in)	18
Longest dry spell (CDD)	195 days	2010	59 days	18

Hottest day (TXx)

The hottest day of the year at Los Perez, 1981 to 2012. The record is 37.8 C (100.0 F) in 2008, marked on the chart; the median year is 30.9 C (87.5 F).

Hottest day (TXx) at Los Perez by year
Year	Hottest day (TXx)
1981	28.9 C (84.0 F)
1982	36.1 C (97.0 F)
1983	31.1 C (88.0 F)
1984	30.0 C (86.0 F)
1986	30.0 C (86.0 F)
1987	30.6 C (87.1 F)
1988	31.1 C (88.0 F)
2000	23.9 C (75.0 F)
2001	25.0 C (77.0 F)
2002	25.0 C (77.0 F)
2003	25.0 C (77.0 F)
2004	30.6 C (87.1 F)
2005	35.0 C (95.0 F)
2008	37.8 C (100.0 F)
2009	32.8 C (91.0 F)
2010	35.0 C (95.0 F)
2011	32.8 C (91.0 F)
2012	36.7 C (98.1 F)

Coldest night (TNn)

The coldest night of the year at Los Perez, 1981 to 2012. The record is -6.1 C (21.0 F) in 2004, marked on the chart; the median year is 5.0 C (41.0 F).

Coldest night (TNn) at Los Perez by year
Year	Coldest night (TNn)
1981	7.8 C (46.0 F)
1982	0.6 C (33.1 F)
1983	7.8 C (46.0 F)
1984	8.3 C (46.9 F)
1986	7.2 C (45.0 F)
1987	6.7 C (44.1 F)
1988	3.9 C (39.0 F)
2000	10.6 C (51.1 F)
2001	0.6 C (33.1 F)
2002	1.7 C (35.1 F)
2003	-5.0 C (23.0 F)
2004	-6.1 C (21.0 F)
2005	-2.2 C (28.0 F)
2008	0.0 C (32.0 F)
2009	5.6 C (42.1 F)
2010	5.0 C (41.0 F)
2011	5.0 C (41.0 F)
2012	15.0 C (59.0 F)

Wettest day (Rx1day)

The wettest day of the year at Los Perez, 1981 to 2012. The record is 67.8 mm (2.7 in) in 2005, marked on the chart; the median year is 42.9 mm (1.7 in).

Wettest day (Rx1day) at Los Perez by year
Year	Wettest day (Rx1day)
1981	52.8 mm (2.1 in)
1982	59.7 mm (2.4 in)
1983	33.3 mm (1.3 in)
1984	41.9 mm (1.6 in)
1986	33.5 mm (1.3 in)
1987	39.6 mm (1.6 in)
1988	46.0 mm (1.8 in)
2000	14.0 mm (0.6 in)
2001	33.8 mm (1.3 in)
2002	45.5 mm (1.8 in)
2003	39.9 mm (1.6 in)
2004	26.7 mm (1.1 in)
2005	67.8 mm (2.7 in)
2008	30.0 mm (1.2 in)
2009	54.9 mm (2.2 in)
2010	64.8 mm (2.6 in)
2011	65.8 mm (2.6 in)
2012	43.9 mm (1.7 in)

Wettest five days (Rx5day)

The wettest five days of the year at Los Perez, 1981 to 2012. The record is 182.4 mm (7.2 in) in 1982, marked on the chart; the median year is 104.1 mm (4.1 in).

Wettest five days (Rx5day) at Los Perez by year
Year	Wettest five days (Rx5day)
1981	97.0 mm (3.8 in)
1982	182.4 mm (7.2 in)
1983	95.5 mm (3.8 in)
1984	115.6 mm (4.6 in)
1986	64.0 mm (2.5 in)
1987	106.8 mm (4.2 in)
1988	123.4 mm (4.9 in)
2000	14.0 mm (0.6 in)
2001	66.3 mm (2.6 in)
2002	122.1 mm (4.8 in)
2003	87.7 mm (3.5 in)
2004	75.9 mm (3.0 in)
2005	101.4 mm (4.0 in)
2008	75.4 mm (3.0 in)
2009	129.3 mm (5.1 in)
2010	167.5 mm (6.6 in)
2011	182.4 mm (7.2 in)
2012	117.6 mm (4.6 in)

Longest dry spell (CDD)

The longest dry spell of the year at Los Perez, 1981 to 2012. The record is 195 days in 2010, marked on the chart; the median year is 59 days.

Longest dry spell (CDD) at Los Perez by year
Year	Longest dry spell (CDD)
1981	29 days
1982	52 days
1983	88 days
1984	67 days
1986	46 days
1987	85 days
1988	82 days
2000	30 days
2001	65 days
2002	53 days
2003	98 days
2004	63 days
2005	55 days
2008	102 days
2009	50 days
2010	195 days
2011	30 days
2012	18 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Download the Data

Data for Los Perez standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Los Perez threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).